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/etc/default/grub
GRUB_CMDLINE_LINUX="intel_iommu=on iommu=pt vfio-pci.ids=foo,bar video=efifb:off"

/etc/modprobe.d/blacklist.conf
blacklist amdgpu

modprobe vfio_iommu_type1
dracut -o amdgpu --force --verbose

GUEST domain
<domain type='kvm' xmlns:qemu='libvirt.org/schemas/domain/qem' > <qemu:commandline>
<qemu:arg value='-s'/> </qemu:commandline>

GUEST kernel params
grubby --update-kernel=ALL --args="console=ttyS0,115200 kgdboc=ttyS0,115200"

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pao.moe (cat|FOSS|*nix)

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